Inflating device.



S. E. BENNETT.

INPLATING DEVICE.

u-zmoumn TILED nov. 7. 191a.

Patented Aug. 4, 191% UNITED STATES g rnnr orrron.

SAMUEL E; Bmmn'r'r, or s'onrn w'xnnmmsron'r, PENNSYLVANIIL IKELATINGIDEVICE.

Specification 01' Letters Patent. jdmflioatio'n men November 7, 1913.Serial No. $9,784,.

Patented Aug. 45, 19M;

To allclbhomit mtg concern:

Beitknown that I; SAMITBB E.-BENNE'1'1,

a. citizen of'thei'lUnited States, residing at- .Sou'thWillfiaifisport,-,in the county of'Lyoomingrmd State of Pennsylvania,have invented certain new and useful-Improvements in. inflating.Device's of. which the following is a'specification, reference being badto 'theieccoinpanymg drawings.-

This invention relates tontire inflating devices and. succinctlysthtedhas'fon its principal object to provide aldevice of thischaracter-whereby one of the engine oylw index-s off-an antoniobile orother motor. ve-

bible is utilized as a pump',' the invent-ion includingvan improvedpressure regulator oprevent overdnflation ofi'the tire, and ana.utomntically operated alarm device ITh'e invention ,has for anotherand more specific'Jobje'ct-to provide a pressure regu-' new; means. forremovably securing the same upon the air conducting tube; said regulatorembodying-'2. springseated'valve, and means. for adjusting the valvespring and therebyvpredetermining the pressure of air inthe wheel tire;I invention has for proi u'e a further object to facture at smallcostand the device as a whole being highly .efiicicnt and serviceableinv-pmctical "use.

\Vith the above and other objects in View ae-will become apparent as thedescription proceeds, the invention consists in certai constructions,combinations and arra e ments of'the parts that I shall hereina terfully describe and claim;

For a full understanding of the invention,

reference is to be had to the following description and accompanyingdrawings, 1n

l lilting device taken on the line 2--2 of Fig.

Figure 1 is an elevation illustrating my invention inits. referred formasapplied in actual use. 1g-., 2 isian enlarged longitudinal section'through the pressure regu- 1. Fig. ,3 isa section-taken on the line 3-3of-Fig. 2; isasectmn taken on the line 4-4 of, Fig. 2.. 5' is an en-:lnrged detailsectionthrough the plug wh ch is mounted in the spark plugopening of the engine cylinder: Fig. (his a detail section take'mon thelime-:6 Ding-3; ,Figr'tis a' tire inflating device which con sists'i ofcomparatively few parts all of simpleform and therefore capable of manua detail, fragmentary elevatidnof the Git pressureregulatonf Referringin a detail to J the drawings, 5 designates one of the engine cylindersoi an automobile or, other inotor vehicle, and indicates one of the'wheels of saidlvehicle' which is provided-with the usual lieumati {tire7. The inner inflatable tu e1 of. the

gin isequipped with anintlating valveincatedat 8, which may be ofjelly-ordinary on approved construction. A plug -9 v is adapted tobethreaded into-the spark plug opening of the engine cylinder 5. r Thisplug includes a tubular exteriorly threaded por' tion having a head10,formed| upon one end. This head is provided with -a nipple 11 whichextends longitudinally therefrom .and with .the bore of w ich an opening12 formed on, thehead communicates. This headdis also provided with. asecond opening 13,.

upon the end face of-the head. In the opene ing-13 and the nipple 11balLcheck valves; designated by the] numerals-1.5 and 14 respectively,are arranged. vTransversely disposed vthreaded pins 17 and 16 areremovably engaged ,in the tubular portion of the plug and in the stem 11to retain said values in place, The endlof the stem 11 is pro vided withexterior-screw threads for engagement by the threads of a couplingsleeve on one end of the air hose or tube 19. The other end of this tubeis adapted for 112- movable engagement upon tl ie'stem of the tireinflating tube 8. 7 From the above (181 11-0 tonthrdugh the opening12'a'nd'the nipple 11 into the tube-19 which conducts the salne to theinflating valve 8 through which the air is supplied to the inner tube bfthe tire. The flexible tube 19 is provided at a suitablepoint with anopening,- indicated at 19.

20 designates a valve casing which is provided npon one end with spacedclamping--' one end of which opens-to the atmosphere plates 21. Theseplates are adapted for-engagement upon opposite sides of the tubing 19and the clamping screw or bolt 22 has threaded engagement in the plates21, whereby said plates may be drawn together and securely clamped uponthe tube. One of the open ends of the valve casing 20 is thus held inregistering relation with the opening 19 in the tubing 19. The valvecasing 20 adjacent the end which is provided with the plates 21 isformed with an internal valve seat This valve casing is also providedwith internal threads to receive the adjustable rod or stem 24:. Thisrod is formed with a central longitudinal bore to receive the stem 26 ofthe valve member 25. Upon the valve stem 26 a coil spring 27 isarranged, one end of said spring bearing against the valve head whilethe other end thereof is seated in an annular recess formed in the endof the rod 24. The other end of the rod 24 is formed with a head 28 andupon said rod a lock nut '29 is threaded for engagement with the end ofthe valve casing 20 to holdthe said rod 24: in its adjusted po sition. Asleeve 30 is loosely engaged at one of its ends upon the periphery ofthe valve casing 20, the other end of said sleeve being fixed to thehead 28 on the outer end of the threaded rod Q L. This sleeve,intermediate of its ends, is provided with opposed openings 31 for theaccommodation of the fingers, whereby the lock nut 29 may be readilymanipulated. The end of the sleeve 30 which is engaged upon the valvecasing has a circular series of graduations indicated at- 3'2, suitablymarked thereon, the

same being numbered from zero to twentyfive. Thus, one complete rotationof the threaded rod '24 indicates an adjustment of the valve springwhich will effect an increase or decrease of twenty-five pounds in thepressure to be supplied to the tire tube as the case may be. The outersurface of the valve casing 20 is marked with a longitudinal line,indicated at with respect to which the graduations 32 on the end of thesleeve are adapted to be disposed. The valve casing is also providedwith the additional graduations 34 extending at right angles to the line33 and numbers indicating variations in air pressure are stamped orotherwise indicated opposite these latter graduations. It is thusapparent that when the rod 2% is turned in the valve casing, the sleeve30 which is fixed to said rod will move longitudinally upon theperiphery of the valve casing and by noting the position of the end ofthe sleeve with relation to the graduations 34;, the user may readilyascertain the exact air pressure in the tire tube before the releasevalve will be forced from its seat to permit of the escape of air fromthe tubing 19.

In order to provide an alarm device for iiation of the tire tube.

acqua-inting the user with the fact that the maximum air pressure hasbeen supplied to the tire. I provide an air whistle generally indicatedby the numeral 35 which mounted upon the valve casing and receives airfrom the transverse bore or passage 36 which communicates with theinterior of the valve casing at a point adjacent to the valve seat 23upon the opposite side thereof with respect to the tubing 19 It willthus be seen that immediately upon opening of the valve 25, the airescaping from the, tubing 19 in the valve casing will pass into thetubular whistle and escape from the orifice thereof, and in such escapeemit a shrill whistle or noise. The operator will then stop theoperation of the engine, remove the plug 9 from the cylinder and insertthe spark plug therein.

From the foregoing, it is believed that the construction and manner ofoperation and the several advantages of my invention will be clearly andfully understood.

The device is extremely simple in its constructiom may be manufacturedat small cost, is capable of easy and quick application or'arrang ementin position for use and effectually obviates all liability of over-in-The pressure regulator and alarm device may be readily removed from theair tube when it is necessary to supply new tubing or make any repairsto the device.

My invention is particularly desirable for use in the inflation ofpneumatic wheel tires such as are used'upon automobiles, motorcycles.and similar vehicles.

The invention when not in use may be compactly stored away in a verysmall space.

It will be understood that it may be found necessary to change the formand construction of the cylinder plug 9 in various minor respects inorder to render the invention adaptable for use in connection with thedifferent kinds of automobiles now in common use. The invention is alsosusceptible of a great many other modifications in the form, proportionand arrangement of the several elements and I therefore reserve theright to resort to all such legitimate changes as may be fairly embodiedwithin the spirit and scope of the invention as claimed.

The herein described tire inflating device comprising in combinationwith an air tube provided with an opening,'a pressure regulatorincluding a casing-open at both ends. means on one end of the casing toclamp the same upon the tube in communication with the opening thereof,-a spring seated valve arranged in one end -of said casing, a rodthreaded in the other end of said casing, one end of the valve springbearing against said rod, a sleeve permanent-1y fixed at one of its endsto the other end of said rod and extendin longitudinally thereof, theother with op osed' finger receivin slots whereby i0 end-o said sleevebeing slidably engaged said 10c nut may be mam ated.

upon the periphery of the valve casing, the In testunon whereof Iereunto afiix my latter end of said sleeve and the valve casingslgnature m t e presence of two witnesses. being provided withindicating graduations and a lock nut threaded upon said rod an i SAMUELE adapted for binding engagement with the Witnesses: I end of the casingto secure the rod in its M. O. LYDDANE,

adjusted position, said sleeve being provided D. W. G'ALL.

